PERROR(3) OpenBSD Programmer's Manual PERROR(3)
NAMEperror - write error messages to standard error
SYNOPSIS#include <stdio.h>voidperror(const char *string);
DESCRIPTION
The perror() function looks up the language-dependent error message
string affiliated with an error number and writes it, followed by a new-
line, to the standard error stream.
If the argument string is non-NULL it is prepended to the message string
and separated from it by a colon and a space (`: '). If string is NULL
only the error message string is printed.
The contents of the error message string is the same as those returned by
strerror() with argument errno.
SEE ALSOintro(2), psignal(3), setlocale(3), strerror(3)STANDARDS
The perror() function conforms to ANSI X3.159-1989 (``ANSI C'').
OpenBSD 2.6 June 29, 1991 1